51 lines
771 B
Smalltalk
51 lines
771 B
Smalltalk
"
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I do print whatever I visit
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"
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Class {
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#name : 'PPCPrintVisitor',
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#superclass : 'PPCNodeVisitor',
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#instVars : [
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'indent'
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],
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#category : 'PetitCompiler-Visitors'
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}
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{ #category : 'printing' }
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PPCPrintVisitor >> dedent [
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indent := indent - 1
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]
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{ #category : 'printing' }
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PPCPrintVisitor >> indent [
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^ indent := indent + 1
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]
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{ #category : 'initialization' }
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PPCPrintVisitor >> initialize [
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super initialize.
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indent := 0.
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]
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{ #category : 'printing' }
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PPCPrintVisitor >> show: string [
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indent timesRepeat: [
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Transcript show: ' '.
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].
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Transcript
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show: string;
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cr.
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]
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{ #category : 'visiting' }
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PPCPrintVisitor >> visitNode: node [
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| retval |
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self show: node asString.
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self indent.
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retval := super visitNode: node.
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self dedent.
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^ retval
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]
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